1 )
First download GAP here http://photocomix-re...ces.deviantart. ... s-77466242
2 create a new folder,whatever is handy for you (in Document, or in Program Files, i suggest not on the desktop but only because there can be deleted by mistake.
Folder name is not important but i suggest something more clear then "new folder" (i.e i called mine GAP )
3 now run unzip the installer..in ythe installer you will see a default path something as C:Program Files/gimp-2.4
4 in the installer at right side of that path there is a search button
Use to find that new folder you have created, as result you should see the path change to point on that folder
Run the installer
5 now open that new folder , search inside, you should see 2 folder inside "plugin" and script...open the plugin folder
6 open the other zip you downloaded, the "bugfix files" , extract the 2 files and move them in the plugin folder you have opened
A warning will pop out asking if you want overwrite the files, click yes

7 well now is basically done, start gimp enter in File/Preferences/Folder there in "plugin"
Now there you should see a "new Folder" icon, click there, then click search the icon is "..." 3 points
Search for your new folder, and for the plugin folder inside.
Click ok
Repeat same step for the script folder, again do not forget to click OK

Those previous commands install GAP on the GIMP installation or does it just create the files in a folder for later to put them where they belong?

The commands presented by Twitch will install GAP directly on the computer. In order to make a Debian package, you will need to do things slightly different. Replacing the last line with 'checkinstall -D make install' might work (I haven't tried it) to make a simple Debian package but without proper dependency resolution and conflict detection.

Everybody makes their own fun. If you don't make it yourself it's not fun, it's entertainment.

compile gap
start MSYS
cd gimp-gap-2.6.0
export PKG_CONFIG_PATH=c:/MinGW/lib/pkgconfig
./configure --disable-libmpeg3 --enable-libavformat
(if error, mostly that you are miss some lib, built it or find it)
make
make install-strip